Electronic Device Enclosure

1. An electronic device enclosure comprising: a chassis; a drive bracket secured to the chassis; and the drive bracket defining a subspace; at least one disk drive received in the subspace of the drive bracket; and an air duct rotatably secured to the drive bracket; wherein the air duct is rotatable between a first position, where the subspace is exposed, and a second position, where the subspace is covered by the air duct; wherein the drive bracket comprises a first sidewall and a second sidewall, the first sidewall defines a first through opening, and the second sidewall defines a second through opening; a plurality of separating walls is located in the drive bracket between the first and second sidewalls; and each of the plurality of separating walls defines a third through opening.

2. The electronic device enclosure of claim 1 , wherein the first sidewall is substantially parallel to the second sidewall and the plurality of separating walls.

3. The electronic device enclosure of claim 1 , wherein the subspace is defined between adjacent two of the first sidewall, the second sidewall and the plurality of separating walls.

4. The electronic device enclosure of claim 1 , wherein the air duct comprises a base board and a plurality of shielding boards located on the base board; and when the air duct is in the first position, the plurality of shielding boards is spaced from the plurality of separating walls, and when the air duct is in the second position, the plurality of shielding boards abuts the plurality of separating walls.

5. The electronic device enclosure of claim 4 , wherein the plurality of shielding boards are substantially perpendicular to the base board.

6. The electronic device enclosure of claim 1 , wherein a first pivot piece is located on the drive bracket; a second pivot piece is located on the air duct; and the first pivot piece is rotatably secured to the second pivot piece.

7. The electronic device enclosure of claim 1 , wherein a resiliently deformable locking piece is located on the drive bracket; a locking tab is located on the air duct; and when the air duct is in the first position, the locking tab is disengaged from the resiliently deformable locking piece, and when the air duct is in the second position, the locking tab is engaged with the resiliently deformable locking piece.

8. The electronic device enclosure of claim 1 , wherein the chassis comprises a bottom plate and a rear plate; the drive bracket is secured to the bottom plate; the rear plate defines a ventilation hole; and an air guiding bracket is secured to the second sidewall and encloses the second through opening and the ventilation hole.

9. An electronic device enclosure comprising: a drive bracket comprising a bottom wall and a top wall opposite to the bottom wall; at least one disk received between the bottom wall and the top wall of the drive bracket; and an air duct rotatably secured to the top wall; wherein the air duct is rotatable between a first position, where the air duct is disengaged from the bottom wall, and a second position, where the air duct is engaged with the bottom wall; wherein the drive bracket further comprises a first sidewall and a second sidewall opposite to the first sidewall; the first and second sidewalls are located between the bottom wall and the top wall; the first sidewall defines a first through opening; and the second sidewall defines a second through opening; a plurality of separating walls is located in the drive bracket between the first and second sidewalls, and each of the plurality of separating walls defines a third through opening.

10. The electronic device enclosure of claim 9 , wherein the first sidewall is substantially parallel to the second sidewall and the plurality of separating walls and perpendicular to the bottom wall and the top wall; and the top wall is substantially parallel to the bottom wall.

11. The electronic device enclosure of claim 9 , wherein a subspace is defined between each adjacent two of the first sidewall, the second sidewall and one or two of the plurality of separating walls.

12. The electronic device enclosure of claim 9 , wherein the air duct comprises a base board and a plurality of shielding boards located on the base board; and when the air duct is in the first position, the plurality of shielding boards is spaced from the plurality of separating walls, and when the air duct is in the second position, the plurality of shielding boards abuts the plurality of separating walls.

13. The electronic device enclosure of claim 12 , wherein the plurality of shielding boards are substantially perpendicular to the base board.

14. The electronic device enclosure of claim 9 , wherein a resiliently deformable locking piece is located on the bottom wall; a locking tab is located on the air duct; and when the air duct is in the first position, the locking tab is disengaged from the resiliently deformable locking piece, and when the air duct is in the second position, the locking tab is engaged with the resiliently deformable locking piece.

15. The electronic device enclosure of claim 9 , further comprising a chassis, the chassis comprising a bottom plate and a rear plate; the drive bracket is secured to the bottom plate; the rear plate defining a ventilation hole; and an air guiding bracket is secured to the second sidewall and encloses the second through opening and the ventilation hole.

16. An electronic device enclosure comprising: a chassis; a drive bracket secured to the chassis; and the drive bracket defining a subspace for receiving a disk drive; and an air duct rotatably secured to the drive bracket; wherein the air duct is rotatable between a first position, where the subspace is exposed, and a second position, where the subspace is covered by the air duct; wherein a resiliently deformable locking piece is located on the drive bracket; a locking tab is located on the air duct; and when the air duct is in the first position, the locking tab is disengaged from the resiliently deformable locking piece, and when the air duct is in the second position, the locking tab is engaged with the resiliently deformable locking piece.